John Zerger
Born : 1962 Cat. M60 Ultrarunner since 1981 USA
28
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
41
DUV-index+ ?Largest integer N such that the race distances provide at least N complete segments of N km in total. A single long race may therefore contribute several segments. See the DUV-Index tab for the detailed calculation. calculation details
2
Countries visited ?CANCanadaUSAUnited States
30,6%
Rank quotient ?This runner's calculation uses 28 eligible race(s): Σ(rank − 1) = 408; Σ finishers = 1 333. 408 / 1 333 × 100 = 30.61%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed28
Km — ultra races2 205 km
> 100 km4
> 160 km3
> 24h5
> 48h1
Longest race170,7 km

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road78,1%
Trail21,9%

Wins & podiums (ultra)

🏆 Win1
🏆 Win M1
🏅 Top 32
🏅 Top 3 M2
Longest winning streak1
Current streak0

HISTORY

28 race(s) · 2 split(s) nested
DateRacePerf.Rk
2017
07.10 12h USAChildren's Hospital Benefit Run 49.889 km6
2016
04.07 50km USA17th Big Butt 50 km 7:34:10 h9
2015
03.10 12h USAChildren's Hospital Benefit Run 53.108 km6
2006
23.09 24h USA1st Hinson Lake 24 Hour Ultra Classic 61.155 km44
22.07 50km USA13th Big Butt 50 km 6:28:40 h24
2005
25.06 50km CAN13th Niagara Ultra 50 km 5:42:12 h47
2002
29.06 50km CAN10th Niagara Ultra 50 km 4:39:06 h13
2001
15.12 50km USA5th Landsford Canal 50 km 4:37:10 h4
30.06 50km CAN9th Niagara Ultra 50 km 5:19:16 h15
06.01 50km USA2nd Salem Lakeshore Frosty Fifty 4:20:18 h15
2000
07.10 24h USAChildren's Hospital 24 Hour Run 164.153 km2 🥈
1999
10.04 50mi USA5th Umstead Endurance Run 50 Miles 8:51:23 h10
14.03 50km USA1st Crowders Mountain 50K 5:44:32 h5
16.02 40mi USA7th Uwharrie Mountain Run 9:17:38 h37
1997
01.11 50mi USA15th Mountain Masochist 50 Mile Trail Run 10:02:44 h48
1996
20.07 50km USA3rd Big Butt 50 km 4:41:13 h9
1994
22.10 50mi USA12th Mountain Masochist 50 Mile Trail Run 9:31:08 h40
1991
23.02 50mi USAHouston Ultramarathon 50mi 6:32:56 h9
19.01 100km USA4th Haugh Hundred 8:53:54 h5
1989
18.03 48mi USA8th Cross Timbers Trail Run 8:56:29 h28
1988
25.11 48h USADallas UltraRunners 48 Hour Track Race 164.796 km13
1986
18.01 100km USA3rd Haugh Hundred 8:50:23 h4
1985
31.08 24h USA4th Labor Day 24 Hour Run 170.691 km7
1984
29.09 24h USABowl of Tears 24 Hour 146.733 km8
01.04 50mi USAWolfpack 50 Mile 6:24:59 h7
1983
26.11 60km USASea Gate Ultras 60 km Run 4:52:43 h11
1982
27.11 50mi USASea Gate Ultras 50 Mile Run 6:21:39 h1 🏆
1981
28.11 60km USAMarathon Plus 60 km Run 4:44:16 h9